Breaking the speed-power-accuracy trade-off in current mirror with non-linear CCII feedback

Julien, Mohan; Bernard, Serge; Soulier, Fabien; Kerzérho, Vincent; Cathébras, Guy

doi:10.1016/j.mejo.2018.11.016

Cited by 7 publications

(6 citation statements)

References 9 publications

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“…The two-stage differential amplifier shown in Figure 4 was used in the design of the QFG-CB, and, again, nested-Miller compensation was used to ensure stability. The second configuration considered for comparison is the Current Conveyor based Current Buffer (CC-CB) [36][37][38][39][40][41]. Figure 8 shows both the schematic circuits and the transistor sizes of the aforementioned class AB current buffers.…”

Section: Performance Characterizationmentioning

confidence: 99%

High-Linearity Self-Biased CMOS Current Buffer

et al. 2018

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A highly linear fully self-biased class AB current buffer designed in a standard 0.18 µm CMOS process with 1.8 V power supply is presented in this paper. It is a simple structure that, with a static power consumption of 48 µW, features an input resistance as low as 89 Ω, high accuracy in the input-output current ratio and total harmonic distortion (THD) figures lower than −60 dB at 30 µA amplitude signal and 1 kHz frequency. Robustness was proved through Monte Carlo and corner simulations, and finally validated through experimental measurements, showing that the proposed configuration is a suitable choice for high performance low voltage low power applications.

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Section: Performance Characterizationmentioning

confidence: 99%

High-Linearity Self-Biased CMOS Current Buffer

et al. 2018

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“…Published in [5] in an early version and lately deployed in various applications [6,7], such structures can overcome under certain conditions the technological limit as long as the power consumption of the feedback circuit can be kept moderately low compared to the current-mirror bias itself. In a previous study [8], we have proven that the replacement of the voltage-mode feedback that exists in a standard active-input current mirror by a current-mode circuit (Figure 1b) significantly enlarges the stability domain and increases the maximum speed reachable while offering a supplementary degree of freedom to tune the system response. Unlike transconductance or voltage amplifiers, current-mode circuits are components with low-input impedance capable of absorbing current with minimal variation in their input voltage.…”

Section: Introductionmentioning

confidence: 95%

“…It has been demonstrated in [8] that by forcing the current-mode feedback to have a non-linear behavior, static specifications can be unbidden from dynamic behavior for a much more power-efficient operation. For instance, thanks to the use of the proposed non-linear current-mode feedback, the speed of a standard diode-connected current mirror has been multiplied by 12.5, while the static power consumed has only increased by a factor 1.4, all with almost no impact on the initial current-copy accuracy or the system stability.…”

Section: Introductionmentioning

confidence: 99%

A Power-Efficient High-Drive Current Mirror Combining a Regulated Cascode Topology with a Non-Linear CCII-Based Feedback

Julien,

Bernard,

Soulier

et al. 2024

Electronics

Self Cite

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This brief presents a continuously regulated current mirror topology capable of providing a wide range of currents with high-precision and speed control features. The circuit combines a non-linear current-mode feedback solution for fast and energy-efficient operation with an input-referred regulated-cascode configuration for precise current mirroring. The proposed implementation has an output current ranging from 100 μA to 2 mA, exhibits a fast response time of ≈100 ns for the full range steps, while ensuring a high power efficiency (>90%) and low current copy errors (<0.5%).

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“…CMs, designed with MOS transistors, have been used widely as biasing and dynamic load in amplifier stages in analog integrated circuit [5][6][7][8][9]. Due to the use of MOSFETs in current mirror, smaller current is sufficient to operate a current mirror circuit in comparison to use of resistors and increase its economical demand and can operated at minimum input and output supply voltages to reduce its power dissipation and improve its performance characteristic [10][11][12][13][14]. Due to inherent advantages, current mode devices are gaining tremendous attention for designing [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Recent Trends on MOSFET based Cascode Current Mirrors: An Analytical Survey

Suman,

Saini

2023

J. Phys.: Conf. Ser.

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To produce copy of current flowing through active devices, from one end to other end of the circuit, current mirrors (CM) are used irrespective of loading effect. It’s indispensable part of an analog and mixed signal system including wide range of applications. In this paper various cascode current mirror circuits such as, an ultra-high compliance current mirror with low power consumption, a CM with extensive swing, a self-biased CM, and quasi-floating CM circuits are analyzed which includes: speed, power, input and output resistance, bandwidth etc. The comparison shows that ultra-high compliance cascode current mirror utilizes low voltage with relatively high frequency response and consumes less power while super cascode configuration is a good choice to obtain high output impedance for better performance, whereas quasi-floating gate MOS current mirror with resistive compensation can be used to enhance the circuit bandwidth. The various circuits are designed at 250 nm, 180 nm, and 130 nm CMOS technologies for justification of performance.

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Breaking the speed-power-accuracy trade-off in current mirror with non-linear CCII feedback

Cited by 7 publications

References 9 publications

High-Linearity Self-Biased CMOS Current Buffer

High-Linearity Self-Biased CMOS Current Buffer

A Power-Efficient High-Drive Current Mirror Combining a Regulated Cascode Topology with a Non-Linear CCII-Based Feedback

Recent Trends on MOSFET based Cascode Current Mirrors: An Analytical Survey

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